The three paid no attention to his words. One of them thrust his hand into Rob's pocket and drew out the electric tube. His ignorance of modern appliances was so great that he did not know enough to push the button. Rob saw him looking down the hollow end of the tube and murmured:

"I wish it would blow your ugly head off!"

But the fellow, thinking the shining metal might be of some value to him, put the tube in his own pocket and then took from the prisoner the silver box of tablets.

Rob writhed and groaned at losing his possessions in this way, and while his hands were fastened behind him tried to feel for and touch the indicator of the traveling machine. When he found that the machine also had been taken, his anger gave way to fear, for he realized he was in a dangerously helpless condition.

The third Turk now drew the Record of Events from the boy's inner pocket. He knew nothing of the springs that opened the lids, so, after a curious glance at it, he secreted the box in the folds of his sash and continued the search of the captive. The Character Marking Spectacles were next abstracted, but the Turk, seeing in them nothing but spectacles, scornfully thrust them back into Rob's pocket, while his comrades laughed at him. The boy was now rifled of seventeen cents in pennies, a broken pocket knife and a lead-pencil, the last article seeming to be highly prized.

After they had secured all the booty they could find, the tall Turk, who seemed the leader of the three, violently kicked at the prisoner with his heavy boot. His surprise was great when the Garment of Repulsion arrested the blow and nearly overthrew the aggressor in turn. Snatching a dagger from his sash, he bounded upon the boy so fiercely that the next instant the enraged Turk found himself lying upon his back three yards away, while his dagger flew through the air and landed deep in the desert sands.

"Keep it up!" cried Rob, bitterly. "I hope you'll enjoy yourself."

The other Turks raised their comrade to his feet, and the three stared at one another in surprise, being unable to understand how a bound prisoner could so effectually defend himself. But at a whispered word from the leader, they drew their long pistols and fired point blank into Rob's face. The volley echoed sharply from the city walls, but as the smoke drifted slowly away the Turks were horrified to see their intended victim laughing at them.

Uttering cries of terror and dismay, the three took to their heels and bounded towards the wall, where a gate quickly opened to receive them, the populace feeling sure the Tatar horde was upon them.